| 车用催化转换器气流特性分析 |
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| 引用本文： | 许建民,袁志群,任恒山,刘金武.车用催化转换器气流特性分析[J].重庆科技学院学报(自然科学版),2009,11(6):105-108. |
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| 作者姓名： | 许建民 袁志群 任恒山 刘金武 |
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| 作者单位： | 厦门理工学院,厦门,361024 |
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| 摘 要： | 用CFD软件对三种不同入口扩张管角度的催化转换器的速度场、压力场进行了三维稳态流动数值模拟。模拟结果显示,入口扩张管的角度对催化转换器的气流分布有很大影响,采用较小角度的入口扩张管,不仅可减少压力损失,而且可以使其内部速度分布更加均匀。
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| 关 键 词： | CFD 催化转换器 入口扩张管角度 速度场 压力场 |
Gas Flow Features of Automotive Catalytic Converters |
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| XU Jian-min,YUAN Zhi-qun,REN Heng-shan,LIU Jin-wu.Gas Flow Features of Automotive Catalytic Converters[J].Journal of Chongqing University of Science and Technology:Natural Science Edition,2009,11(6):105-108. |
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| Authors: | XU Jian-min YUAN Zhi-qun REN Heng-shan LIU Jin-wu |
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| Affiliation: | XU Jian-min YUAN Zhi-qun REN Heng-shan LIU Jin-wu(Xiamen University of Technology,Xiamen 361024) |
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| Abstract: | In this article,multi-dimensional numerical simulation about velocity field and pressure field of steady flows in the catalytic converters for three different entrance angle of the expansion tube is performed.Simulation results show that the entrance point of the expansion tube has a great impact on the flow of catalytic converters.Using a smaller angle of the entrance of the expansion tube,not only reduce the pressure loss,but also make more uniform velocity distribution. |
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| Keywords: | CFD |
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